<!--SIF Implementation Specification 2.2-6 (March 17, 2008)-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" targetNamespace="http://www.sifinfo.org/infrastructure/2.x" xmlns:sif="http://www.sifinfo.org/infrastructure/2.x" elementFormDefault="qualified">
  <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="imports/xml/xml.xsd" />
  <xs:complexType name="VendorInfoType">
    <xs:sequence>
      <xs:element name="Name" minOccurs="0" type="xs:normalizedString" />
      <xs:element name="ContactInfo" minOccurs="0" nillable="true" type="sif:ContactInfoType" />
      <xs:element name="CustomerId" minOccurs="0" nillable="true" type="xs:normalizedString" />
      <xs:element name="EmployeePersonalRefId" minOccurs="0" nillable="true" type="sif:IdRefType" />
      <xs:element name="Send1099" minOccurs="0" nillable="true" type="xs:boolean" />
      <xs:element name="FederalTaxId" minOccurs="0" nillable="true">
        <xs:complexType>
          <xs:simpleContent>
            <xs:extension base="xs:normalizedString">
              <xs:attribute name="Code" use="required">
                <xs:simpleType>
                  <xs:restriction base="xs:token">
                    <xs:enumeration value="EIN" />
                    <xs:enumeration value="SSNO" />
                    <xs:enumeration value="ITIN" />
                    <xs:enumeration value="ATIN" />
                    <xs:enumeration value="OTHER" />
                  </xs:restriction>
                </xs:simpleType>
              </xs:attribute>
            </xs:extension>
          </xs:simpleContent>
        </xs:complexType>
      </xs:element>
      <xs:element name="SIF_Metadata" minOccurs="0" nillable="true" type="sif:SIF_MetadataType" />
      <xs:element name="SIF_ExtendedElements" minOccurs="0" nillable="true" type="sif:SIF_ExtendedElementsType" />
    </xs:sequence>
    <xs:attribute name="RefId" use="required" type="sif:RefIdType" />
  </xs:complexType>

  <xs:element name="VendorInfo" type="sif:VendorInfoType" />

</xs:schema>